Machine for framing floor-beams



mi. 689,l69. Patented Dec. 17, MN.

c. L. A. DOEPPE.

IAOHIIIE FOR FRAIIIIG FLOOR BEAMS;

(Application mm. an. as, 1901.)

3 Sheets-Shut I.

(I0 lodol.)

Withmeo Patented Doc. l7, I90l.

C. L. A. DOEPPE.

IACI'IINE FOR FHA-INS FLOOR BEAIS.

A umion am Jun. no, 1001. v

3 Shoots-Shoot 3.

(II Model.)

m a L WITNESSL 'S UNITED STATES CHARLES L. A. DOEPPE, OF RICHMOND,VIRGINIA.

MACHINE FOR FRAMING FLOOR-BEAMS.

PATENT Farce.

SPECIFICATION forming part of Letters Patent N 0. 689,169, datedDecember 17, 1901.

Application filed January 26, 1901. Serial No. 44,942. (No model.)

To all whom it may concern:

Be itknown that I, CHARLES L. A. DOEPPE, a citizen of the United States,and a resident of Richmond, county of Henrico, and State of Virginia,have invented certain new and useful Improvements in Machines forFraming Floor-Beams, of which the following is a specification.

vMy invention relates to framing floorbeams for railroad bridges andtrestles; and it has for its object the provision of simple meanswhereby such floor-beams may be framed with a minimum of labor and ofcost.

Floor-beams which are to be placed on railroad trestles and bridges areframed-that is, they have cut in them notches of such depth that acertain thickness of timberis left between the bottom of the notch andthe opposite face of the floor-beam. The notches are cut at such adistance apart that when the floor-beams are placed in position on abridge or trestle the said notches will engage the tops of thelongitudinal girders upon which they are to rest. The opposite faces ofthe floor-beams-that is,the faces to which the rails are to besubsequently spiked-'wi11 then be at a uniform height above the saidgirders. This framing of floor-beams for a straight track is necessary,because the floorbeams, which are frequently ronghhewn, varyconsiderably in their thickness. \Vhen a trestle or bridge happens to beon a curve, the notches in the floor-beams must be cut to differentdepths, so that the said floorbeams when in position may give to theouter rail its proper elevation, and also the difierence in depth of thenotches of those floorbeams which are destined for the approach to acurve must have a gradual variation as the curve is approached, so thatthe elevation of the outer rail may be obtained gradually. Again, incases where what are known as easement curves are usedthat is, curveswhose radius becomes shorter as their center is approached, and viceversait is necessary that the outer rail should be elevated gradually,its highest point being in the center and its least elevation at theends of the curve. This of course necessitates a gradual raising andlowering of the outer ends of the floor-beams. In framing thesefloor-beams by ha nd it is necessary to carefully calculate the depth towhich each floorbeam to be used on easement curves must be notched, andcare must be taken to obtain the proper diflierence in depth between thenotches in each floor-beam and to obtain the proper increase or decreasein their diiference as the center of the curve is approached and left.Consequently the correct framing of floor-beams by hand is an operationattended by much labor and great cost; and the object of my invention isthe provision of means whereby the correct framing of floorbeams forbridges, trestles, 850., may be effected with expedition and with aminimum of labor and cost.

In order to render clear the following description of my machine and itsworking, I will first give a brief outline of the manner in which itoperates to frame floor-beams. Cutters of a width necessary to cut thenotches in the floor-beams are arranged at the proper distance apart ona shaft, the shaft being provided with means whereby it may be rapidlyrevolved. Circular saws are carried one on each end of the cutter-shaft,their function being to cut the fioorbeam to its proper length. Thefloor-beam to be framed is placed upon a traveling table, which isadjustable in a vertical plane in order to regulate the inclination ofthe floor-beam. The traveling table, and consequently the fioor-beam,having been set at its required inclination, the driving mechanism isthrown into gear and the fioorbeam is carried forward to the cutters,which, revolving, cut the required notches in it. If the floor-beam bedestined for a straight piece of track, the traveling table is set sothat itsuppersurfaceishorizontal. Consequently the bottoms of thenotches cut in the floorbeams will be equidistant from the face ofthesaid floor-beams, for the said face upon which the rails are to be laidis placed downward in the machine and will therefore have the sameinclination as the upper face of the traveling table. While the cuttersare notching the floor-beams the circular saws will be cutting off thecrop ends. Should the bridge or trestle on which the fioor-beams are tobe used form a part of a curve, it will be necessary to cut the notchesin each floor-beam to different depths in order to obtain the properelevation of the outer rail. To do this, the traveling table, whichcarries the floor-beams, is set to the required inclination, andconsequently all floor-beams notched with the table at this inclinationwill have notches of the required difference in depth. Again, should thebridge or trestle on which the floor-beams are to be used form anapproach to a curve or form an easement curve or a part of one it willbe necessary to make the difference in depth of the notches in thefloor-beams vary as the approach or the curve progresses. To obtain thevariation in the case of an approach, the inclination of the travelingtable is increased for each floor-beam, or, if this is consideredunnecessary, for every few floor-beams, until the floor-beams havereceived the proper inclination to give to the outer rail its properelevation, and in the case of easement curves the inclination of thetable, and consequently theinclination ofthe floor-beams, isincreasedand decreased as the center of the curve is approached and left.

Referring to the drawings which accompany and form a part of thisspecification, and in which like numerals refer to'like parts in thedifferent views, Figures I, II, and III are views of the machine infront elevation, plan, and side elevation, respectively. Fig. IV is avertical section of the machine. Fig. V is a detail of thereversing-gear. Fig. VI is a detail, partly in section, of thetable-inclining mechanism. Fig. VII is a detail in section of theadjustable heads for carrying the cutter-shaft; and Fig. VIII is a viewof the machine in front elevation, showing a modified arrangement of theadjustable traveling table.

In Figs. I,II, III, and IV, 1 1 are guide-beds having guides 2 2.Supported by the guides and movable thereon is the table 3, which isprovided with brackets 4 4, having bearings 5 5. 6 is a table providedwith trunnions 7 7, which trunnions engage in the bearings 5 5, and soform a pivot on which the table 6 may be swung. The floor-beam to beframed is slid endwise onto the table 6, rollers 8 8, &c., being letinto the said table in order to facilitate the placing of thefloor-beams thereon. 9 9 are lugs provided with projecting points 10 10,by means of which and the movable clamp 11 the floor-beam may be held inposition on the table '6. The clamp 11 is attached to a threaded spindle12, which engages in a female screw cut through the (5611-- ter'of oneof the trunnions 7, the threads of the spindle 12 and of the femalescrew being what are termed interrupted threads, so that when afloor-beam has been placed in position the clamp 11 may be quicklybrought to bear against it and be caused to clamp it by a turn of thespindle 12 through a small are. 13 is a handle by means of which thespindle 12 may be rotated.

In Figs. I, II, and III, 14 represents a floorbeam in position to beframed, and in Fig. IV, 14 represents the same floor-beam after it hasbeen framed, the bottom of one of the the shaft 16 are mounted the saws19 19, the

cutters 20 20, and the pulleys 21 21, through which, being driven andbeing connected by means of belts with the driving-pulleys of somemotor, the shaft 16, with its cutters and saws, is revolved. The saws 1919 are set at such a distance apart that they will cut the floor-beam tothe required length, and the cutters 20 20 are spaced so that thenotches cut by them in the floor-beam may be at the correct distanceapart. The cutters may be of any of the common forms designed to cut aslot or notch of uniform depth, those shown in the drawings (see Fig.III) being provided with saw-sections 22 22, which saw-sections out twonarrow saw-slots in the floor-beam at a distance apart equal to thewidth of the desired notch and being also provided with cutting-blades23 23, which cut out the material between the saw-slots cut by thesaw-sections 22 22. The cutter-blades may be plain if the bottoms of thenotches are to be plain, or they may have projecting portions if groovesare to be cut in the bottoms of the notches in the floor-beams to allowfor rivet-heads, (be. The table 6 is adjusted as to its inclination bymeans of gearing attached, preferably, to the lower side of the table 3,where it will be out of the way and where it will not be liable todamage from falling timber. To the lower side of the adjustable table 6is pivoted the rod 24, on the lower end of which are cut screw-threads.This rod 24 passes through the table 3, and its threaded part engages ina female screw cut through the body of the bevel-wheel 25, which issupported on the under side of the table 3 by means of the bracket 26.(See Fig. VI.) Gearing with the bevel-wheel 25 is another bevel-wheel27, mounted on the shaft 28, which is carried in brackets 29 29,attached to the table 3. the shaft 28 there is also mounted a handwheel30, by means of which the shaft 28, and consequently the bevel-gear 27may be rotated. It will be seen that upon rotating the shaft 28 thebevel gear 27 will rotate the bevel-gear 25, and the latter gear will,according to the direction in which it is revolved, raise or lower therod 24:, the threaded part of which engages threads cut through the bodyof the said bevel-gear, and it will consequently raise or lower that endof the table 6 to which the rod 24 is pivoted. The extent to which therod 2% is raised or loweredthat is, the extent to which the table 6 isinclined upon turning the shaft 28is preferably indicated by means of agraduated gage-rod 31, attached to the lower side of the table 6 andwhich enters a slot 32 cut to receive it in the table 3. Upon thisgage-rod may be cut marks, the relation of which to the surface of thetable 3 will indicate the degree of inclination of the table 6. I

have the required difi'erence in depth, or so -that they shall be ofequal depth-that is to say, the table is given the required inclinationor is set in a horizontal position. This having been done, the table 3,carrying the table 6 and the floor-beam, is caused to slide along theguides 2 2, and so carry the floorbeam into engagement with the saws 19and cutters 20. As soon as the beam has been carried so far that thecrop ends have been cut off and the notches have been cut the table 3 iscaused to recede, and so bring the beam out of engagement with the sawsand cutters. Suppose that the beams which we are about to frame areintended fora straight trestle or bridge. We set the table 6 in ahorizontal position. The bottoms of thenotches cut will then beequidistant from the face of the beam--that is, from what is now thelowerside of the beam. If the beams are intendedfor an ordinary curve,the table 6 is given such an inclination that the'notches cut will havethe difference in depth required to give to the outer rail of the curveits proper elevation, and every beam required for use on the curve canbe correctly notched without resetting the table 6. No measurements needbe made on any of the beams. No laying olf is necessary. All that isnecessary is first to set the table 6 to the inclination required togive the proper difierence in depth to the notches, the inclination tobe indicated by the gage 31, and then to place the required number ofbeams successively upon the table 6 and pass them under the cutters andsaws. If floor-beams are now to be framed for the approach to anordinary curve or for an easement curvethat isto say, if floor-beams areto be so framed that the dilference in depth of the notches in each beamshall steadily increase as the ordinary curve or as the center of theeasement curve is approached and decrease as they are left-the first.beam will have notches whose bottoms are equidistant from the face ofthe beam, (it being understood that by the face of the beam the facewhich is lowest while the beam is on the table 6 is referred to, and thesurface on which the notches are cut is the true bottom of the beam,)and the beam destined for the commencement of the ordinary curve or forthe center of the easement curve will have notches between whose depthsthere will be the greatest difference. Suppose that it is required toframe one hundred beams for an approach to an ordinary curve and thatthe elevation of the outer rail of the curve is to be one inch. Thedifierence in depth between the notches of the beam will increase byapproximately one one-hundredth of an inch as the approach progresses.Therefore for the first beam to be framed we set the table 6 in ahorizontal position, for the second at such an inclination that therewill be a difference of one one-hundredth of an inch in depth betweenthe two notches, for the third a dilference of one-fiftieth of an inch,for the fourth a difference of three one-hundredths of an inch, and soon. In practice this would probably be considered too fine anadjustment, and a given number of beamssay five-would be so framed thatthe difference in the notches of each would be one-twentieth of an inch,the difference in the notches of the next five beams onetenth of aninch, of the next five three-tenths, of the next five one-fifth, and soon.

In Fig. I the table 6 is shown pivoted at its center. If the depth ofthe two notches cut in a beam when the table 6 is horizontal isthree-quarters of an inch and if now the table 6 be so inclined that thedifference in depth of the notches cut in the next beam is half an inch,one of the said notches will be one inch in depth and the other half aninch -that is to say, the depth of one notch will be increased and thedepth of the other decreased by .a quarter of an inch. That isequivalent to saying that while we elevate one rail we lower the otheran equal amount. By doing so we give to the outer rail the requiredelevation over the inner one without changing the height of the centerof the track. This is considered by some engineers a very important anddesirable advantage, as a train running on such a track is not requiredto climb, the center line of the train always remaining in the samehorizontal plane. It will be readily seen that to frame beams by handfor such a track would entail a great amount of labor and cost, as afterthe necessary calculations had been made each beam would have to becarefully gaged and marked 01f before being framed. If it be desired toso frame the floor-beams that in obtaining the required elevation of theouter rail the said outer rail only is moved from its originalhorizontal plane-that is, sothat the inner or lower rail is kept in thesame horizontal plane throughout the approach or curvethe table 6 of themachine is pivoted at a point in a vertical line with one of the cutters20 instead of at a point situated at its own center. The machine withthe table 6 so pivoted is shown in Fig. VIII, wherein the trunnionsattached to the table 6, one of which trunnions is indicated in Fig.VIII by the numeral '7, are in avertical line with one of the cutters20. The clamp 11, spindle 12, and other parts of the machine arepreferably retained in the positions in which they are shown to be inFig. I. If the notches in the beams are not cut at a distance apartequal to the gage of the track, but at a greater distance apart, as isusually the case, the pivot 33 is arranged to fall in the same verticalplane as that point on the beam at which the inner or immovable railwill be located. Thence no matter at what inclination the beams areframed that point on the beams at which the rail will be located willwhen the beams are placed in Ito could adjust the latter would be byproviding means for vertically adjusting the guides 2 2 or theguide-beds 1 1, to which all mechanisms for operating the tables 3 and 6would be attached. It has been found that this method of attaining therequired adjustment is attended with some objections, and I thereforeadopt the former method of making the cutter-shaft 16 verticallyadjustable. Owing to the fact that it is most desirable to have cuttersof as small a diameter as possible, for the greater the diameter of thecutters the greater is the power required to drive them when inoperation, it is necessary to so arrange the heads 17 and the adjustableshaftbearings which they carry that as much head room as possible may beobtained beneath them to allow the beams being framed to pass withoutfouling. The usual forms of adjust- -able shaft-bearings are notavailable, for

those which allow suflicient head room take too long to set andothers,which can be quickly set, do not allow the required head room. Ihave therefore devised a special means. for adjusting theshaft-bearings, which means allow the necessary head room and which canbe quickly set.

In Figs. I, II, III, IV, VII, and VIII, 34 34 34 are casings, open onone side and at the top and bottom,which are bolted to the flanges 35 ofthe standards 18 18 18, the open side of the casings being next to thesaid flanges. Consequently these casings form with the said flangesboxes having neither top nor bottom,

. and inside these boxes are suspended the shaftbearings/the walls ofthe boxes forming guides forthe latter. In opposite sides of the casingsthere are cut openings 36 (see Figs. III and'IV) to allow the shaft 16to pass through. Referring to Fig. VII, 37 is a yoke which carries thebrasses 38 38 and which is provided with the threaded spindle 39, thethreads of which spindle engage in threads cut in the hub of thehand-wheel 40. The hand-wheel 4O rests upon the top of the cover 41,through which cover a hole is cut for the passage of the spindle 39. Itwill be seen that upon revolvin g the hand-wheel 40 the yoke 37,carrying the brasses 38 38, will be caused to rise or descend accordingto the direction in which the hand-wheel is revolved. In order to keepthe upper brass 38 in position and bearing on the shaft 16, a pin 42 ispassed down the center of the spindle 39, and it is caused to bear upona plate of hard metal 43, which is placed upon the top of the upper oneof the brasses 38. The upper end of the pin 42, which is threaded,engages in a female screw 44, cut in the upper end of the yoke-spindle39, and it is provided with'a square head, to which may be fitted awrench or handle for turning the screw. To adjust theshaft 16 to a newposition, it is only necessary to give to the three hand-wheels on thethree heads revolutions through arcs of equal magnitude.

Having described the manner in which the cutters 20, the saws 19, andthe table mechanisms operate, I will explainthe manner in which thefloor-beams are advanced to the cutters and saws.

Carried in the brackets 45 45, attached to the guide-beds 1 1, there areshafts 46 46, having out on them screw-threads, which threads engage infemale-threaded lugs 47 47, secured to the under side of the table 3.Keyed one on each ofv the shafts 46 46 are worm-Wheels 48 48, whichworm-wheels gear with worms 49 49, carried on the shaft 50, which shaftis carried in brackets 51 51 51, attached to the standards 18 18 18.Secured in the shaft are the clutch mechanisms 52 52, which are arrangedto engage in loose pulleys 53 54. The loose pulleys are driven by meansof belts leading from the motor, one belt being crossed, so that thepulleys 53 54 may be given motions in directions opposite to oneanother. These directions of motion are indicated by means of arrows inFig. II. In Figs. II, IV, and V, 55 55 are bell-cranks pivoted on one ofthe standards 18 and connected with the clutchlevers 56 56. Thebell-cranks 55 55 are operated by. means of rods 57 58 to throw theclutches in and out of gear, and the rods in their turn are actuated bymeans of lugs 59,

60, and 61, attached to the table 3 and which are arranged to strikestops 62, 63, and 64 when the table is in motion, the stop 62 beingattached to the rod 57 and the stops 63 and 64 to the rod 58. (See Fig.IV.) The manner in which this mechanism operates the table 3 is asfollows: The table being in the position shown in Figs. II and III and abeam having been placed in position on the table 6 and the said tableproperly adjusted, the pulley 53, which we will suppose is driven by thestraight belt, is thrown into gear with its clutch mechanism by pullingthe rod 57 by hand in the direction indicated by the arrows. Theworm-shaft 50, the worm-gearings, and the screw-shafts 46 46 are at onceset in motion. The screw-shafts, revolving in the direction indicated bythe arrows andactin g on the female-threaded lugs 47 47, draw the table3 forward, and consequently draw the beam to be framed into engagementwith the cutters and saws. Just after the operation of cutting thenotches in the beam and of sawing off the crop ends has been completedthe lug 59 (see Fig. V) strikes the stop 62 on the rod 57 and, throwingthe said rod back to its original position, throws the pulley 53 out ofengagement with its clutch mechanism,

and so checks the forward movement of the beam. At the same time the lug60 (see Figs. IV and V) strikes the stop 63, attached to the rod 58, andso throws the pulley 54 (which is driven by the cross-belt) and itsclutch mech anism into gear. The pulley 54 imparts to the shaft 50 andthe screw-shafts 46 46 motions contrary in direction to those which wereimparted to them by the pulley 53, and consequently the tables 3 and 6and the beam are now caused to recede from the cutters and saws. Just asthe tables near their first position the lug 61 strikes the stop 64,attached to the rod 58, and, throwing the latter in the directionindicated by the arrow, (see Fig. IV,) throws the pulley 54 out of gearwith its clutch mechanism. Both of the pulleys 53 and 54 are now freefrom their clutch mechanisms, and the tables and beam consequently cometo rest. The framed beam can now be removed and another placed inposition.

Havingnow described my invention, what I claim, and desire to protect byLetters Patent of the United States, is

1. In a machine of the character described, the combination of standardsfor carrying a cutter shaft, vertically adjustable bearings attached tothe standards, a rotatable shaft mounted in the bearings, means forrevolving the shaft, rotary cutters mounted on the shaft one adjacent toeach end thereof, guideways, a carrier adapted to reciprocate upon theguideways, a table for supporting the beam pivoted at the middle of itslength to the carrier so as to be adjustable as to its inclination in avertical plane parallel to the cuttershaft, means for adjusting theinclination of the table, and means for reciprocating the carrier,intermittently on the guideways to carry the beam into and out ofengagement with the cutters.

2. In a machine of the character described,

the combination of standards for carrying a cuttershaft, verticallyadjustable bearings attached to the standards, a rotatable shaft mountedin the bearings, means for revolving the shaft, rotary cutters mountedon the shaft one adjacent to each end thereof, guideways, a carrieradapted to reciprocate upon the guideways, a table for supporting thebeam' pivoted to the carrier so as to be adjustable as to itsinclination in a vertical plane parallel to the cutter-shaft, means foradjusting the inclination of the table, and automatic means forreciprocating the carrier intermit-v tently on the guideways to carrythe beam into and out of engagement with the cutters.

, 3. In a machine of the character described, the combination ofstandards for carrying a cutter shaft, vertically adjustable bearingsattached to the standards, a rotatable shaft mounted in the bearings,means for revolving the shaft, rotary cutters mounted on the shaft oneadjacent to each end thereof, guideways, .a carrier adapted toreciprocate upon the guideways,, a table for supporting the beam pivotedto the carrier at the middle of its length so as to be adjustable as toits inclination in a vertical plane parallel to the cuttershaft, meansfor adjusting the inclination of the table, and automatic means forreciprocating the carrier intermittently on the guideways to carry thebeam into and out of engagement with the cutters.

4. In a machine of the character described, the combination of standardsfor carrying a cutter-shaft, vertically-adjustable bearings attached-tothe standards, a rotatable shaft mounted in the bearings, means forrevolving the shaft, rotary cutters mounted on the shaft oneadjacent toeach end thereof, guideways, a carrier adapted to reciprocate upon theguideways, a table for supporting the beam pivoted to the carrier so asto be adjustable as to its inclination in a vertical plane paral lel tothe cutter-shaft, means for adjusting the inclination of the table,endless screw attached to the standards, a rotatable shaft mounted inthe bearings, means for revolving the shaft, rotary cutters mounted onthe shaft one adjacent to each end thereof, guideways, a carrier adaptedto reciprocate upon the guideways, a table for supporting the beampivoted at the middle of its length to the carrier so asto be adjustableas to its inclination in a vertical plane parallel to the cutter-shaft,means for adjusting the inclination of the table, endless screw-shaftsengaging in threaded lugs attached to the carrier, a

drive-shaft, means connectingthe drive-shaft with the endlessscrew-shafts whereby the driveshaft may rotate the endless screwshaftsto reciprocate the carrier, and means for intermittently operating thedrive-shaft.

6. In a machine of the character described, the combination of standardsfor carrying a cutter shaft, vertically adjustable bearings attached tothe standards, a rotatable shaft mounted in the bearings, means forrevolving the shaft, rotary cutters mounted on the shaft one adjacent toeach end thereof, guideways, a carrier adapted to reciprocate upon theguideways, a table for supporting thebeam pivoted to the carrier so asto be adjustable as to its inclination in a vertical plane parallel tothe cutter-shaft, means for adjusting the inclination of the table,endless screw-shafts engaging in threaded lugs attached to the carrier,a drive-shaft, means connecting the drive-shaft with the endlessscrew-shafts whereby the drive-shaft may rotate the endless screw-shaftsto reciprocate the carrier, means for setting the drive-shaft ing theshaft, rotary cutters tnounted on the shaftone adjacent to eachendthercof, guideways, a carrier adapted to reciprocate upon theguideways, a table for supporting the beam pivoted at the middle of itslength to the carrier so as to be adjustable as to its inclination in avertical plane parallel to the cutter-shaft, means for adjusting theinclination of the table, endless screw-shafts en gaging in threadedlugs attached to the carrier, a drive-shaft, means connecting thedrive-shaft with the endless screw-shafts whereby the drive-shaft mayrotate the endless screw-shafts to reciprocate the carrier, means forsetting the drive-shaft in motion in one directionto bring the beam intoengagement with the cutters, means for automatically reversing themotion of the driveshaft to bring the beam out of engagement with thecutters, and means for automatically throwing the drive-shaft out ofgear to the shaft, rotary cutters mounted on the shaft one adjacent toeach end thereof, guideways, a carrier adapted to reciprocate upon theguideways, a table for supporting the beam pivoted to the carrier so asto be adjustable as to its inclination in a vertical plane parallel tothe cutter-shaft, means for adjusting theinclination of the table,endless screwshafts engaging in threaded lugs attached to the carrier, adrive-shaft, means connecting the drive-shaft with the endlessscrew-shafts whereby the drive-shaft may rotate the endless screwshaftsto reciprocate the carrier, at friction-pulley 53 by which thedrive'shaft is revolved to move the carrier forward, means for throwingsaid pulley into gear, a frictionpulley 54 by which the drive-shaft isrevolved to reverse the motion of the carrier, means for throwing thepulley 53 out of gear and the pulley 54 into gear simultaneously, andmeans for throwing the pulley 54 out of gear to bring the carrier torest.

9. In a machine of the character described, the combination ofstandards, vertically-adj ustable bearings attached to the standards, arevoluble shaft mounted in the bearings, cutters mounted on the shaftone adjacent to each. end thereof, circular saws mounted one at each endof the shaft, means for revolving the shaft, a carrier provided with andadapted to reciprocate upon guideways, a "table for supporting the beampivoted to the carrier so as to be adjustable as to its inclination in a1 vertical plane parallel to the cutter-shaft, means for adjusting theinclination of the table, endless screw-shafts engaging in threaded lugsattached to the carrier, adrive-shaft, means connecting the drive-shaftwith the endless screw-shafts whereby the drive-shaft may rotate theendless screw-shafts to reciprocate the carrier, and means forintermittently operating the drive-shaft.

10. In a machine of the character described, the combination ofrevoluble cutters adapted to notch the beam, means for revolving thecutters, guideways, a carrier adapted to reciprocate u pon theguideways, atable for supporting the beam pivoted at the middle of itslength to the carrier soas to be adjustable as to its inclination in avertical plane parallel to the cutter-shaft, means for adjusting theinclination of the table, automatic means to slide the carrier forwardto carry the beam into engagement with the cutters, to reverse themotion of the carrier to carry the beatn out of engagement with thecutters, and to bring the beam to rest.

1 1. In a machine of the character described, the combination of arevoluble shaft, means for revolving the shaft, rotary cutters mountedon the shaft one adjacent to each end thereof, circular saws mounted onthe shaft one at each end thereof,guideways, a carrier adapted toreciprocate upon the guideways, a table for supporting the beam pivotedat the middle of its length to the carrier so as to be adjustable as toits inclination in a vertical plane parallel to the cutter-shaft, meansfor adjusting the inclination of the table, and automatic means forintermittently reciprocating the carrier to carry the beam into and outof engagement with the cutters and saws.

12. In a machine of the character described, the combination ofarevoluble shaft, cutters mounted on the shaft one adjacent to each endthereof, means for revolving the shaft, guideways, a carrier adapted toreciprocate upon the guideways, a table for supporting the beam andpivoted to the carrier so as to be adjustable in a vertical plane, andautomatic means for intermittently reciprocating the carrier to carrythe beam into and out of engagement with the cutters.

13. In a machine of the character described, the combination ofstandards for carrying a cutter-shaft, a cutter-shaft, means forrevolving the cutter-shaft, rotary cutters mounted on the shaft oneadjacent to each end there of, guidewa'ys, a carrier adapted to reciprocate upon the guideways, a table for supporting the beam pivoted to thecarrier so as to be adj ustableas to its inclination in a vertical planeparallel tothe cutter-shaft, means for adjusting the inclination of thetable, endless tached to the carrier, a drive-shaft, means connectingthe drive-shaft with the endless screw-shafts whereby the drive-shaftmay rotate the endless screw-shafts to reciprocate the carrier, andmeans for intermittently operating the drive-shaft.

14. In a machine of the character described, the combination ofstandards for carrying a cutter-shaft, a cutter-shaft,means forrevolving the cutter-shaft, rotary cutters mounted on the shaft, oneadjacent to each end thereof, guideways, a carrier adapted toreciprocate upon the guideways, a table for supporting the beam pivotedat the middle of its length to the carrier so as to be adjustable as toits inclination in a vertical plane parallel to the cutter-shaft, meansfor adjusting the inclination of the table, endless screw-shaftsengaging in threaded lugs attached to the carrier, a drive shaft, meansconnecting the drive-shaft with the endless screw shafts wherebythedrive-shaft may rotate the endless screw-shafts to reciprocate thecarrier, and means for intermittently operating the drive-shaft.

15. In a machine of the characterdescribed, the combination of arevoluble shaft, means for revolving the shaft, rotary cutters mountedon the shaft one adjacent to each end thereof, guideways, a carrieradapted to reciprocate upon the guideways, a table for supporting thebeam pivoted at the middle of its length to the carrier so as to beadjustable as to its inclination in a vertical plane parallel to thecutter-shaft, means for adjusting the inclination of the table, andautomatic means for reciprocating the carrier to carry the beam into andout of engagement with the cutters.

16. In a machine of the characterdescribed, the combination of arevoluble shaft, means for revolving the shaft, rotary cutters mountedon the shaft one adjacent to each end thereof, guideways, a carrieradapted to reciprocate upon the guideways, a table for supporting thebeam pivoted to the carrier so as to be adjustable as to its inclinationin a vertical plane parallel to the cutter-shaft, means for adjustingthe inclination of the table, and automatic means for reciprocating thecarrier to carry the beam into and out o engagement with the cutter.

Signed at Richmond, in the county of Henrico and State of Virginia, this19th day of December, A. D. 1900.

CHARLES L. A. DOEPPE.

Witnesses:

ARTHUR SORIVENOR, EUGENE JONES.

